Center of a Lewis Structure

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405289292
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Joined: Thu Oct 03, 2019 12:16 am

Center of a Lewis Structure

Postby 405289292 » Mon Nov 11, 2019 10:10 pm

For the sake of this class, should we assume that the atom with the lowest ionization energy is in the middle of the Lewis structure?

Shail Avasthi 3C
Posts: 86
Joined: Fri Aug 30, 2019 12:17 am

Re: Center of a Lewis Structure

Postby Shail Avasthi 3C » Mon Nov 11, 2019 11:02 pm

Yes. Lavelle said in lecture that this is the best way of going about drawing lewis structures for this class.

ngarcia
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Joined: Thu Jul 11, 2019 12:17 am

Re: Center of a Lewis Structure

Postby ngarcia » Mon Nov 11, 2019 11:39 pm

Yes. Typically, the atom that is alone or has the lowest quantity in the formula is at the center of the Lewis structure.

Angus Wu_4G
Posts: 95
Joined: Fri Aug 02, 2019 12:15 am

Re: Center of a Lewis Structure

Postby Angus Wu_4G » Tue Nov 12, 2019 12:36 am

Sometimes I go by the rule that the atom that is able to form the most bonds is the central atom of a lewis structure, though not an official rule, it has served me pretty well in the past.

Michelle Song 1I
Posts: 85
Joined: Thu Jul 11, 2019 12:17 am

Re: Center of a Lewis Structure

Postby Michelle Song 1I » Tue Nov 12, 2019 5:39 am

I go with the least electronegative atom, which tends to be the atom with the lowest ionization energy except in the case of nitrogen and oxygen, in which oxygen has a lower ionization energy but is more electronegative (in this case, I believe nitrogen is used as the central atom).

abby hyman
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Joined: Thu Jul 25, 2019 12:16 am

Re: Center of a Lewis Structure

Postby abby hyman » Tue Nov 12, 2019 9:20 am

I figure out which atom is the least electronegative which is often the one with the lowest ionization energy. Nitrogen and Oxygen are exceptions to this though

emwoodc
Posts: 45
Joined: Fri Aug 09, 2019 12:16 am

Re: Center of a Lewis Structure

Postby emwoodc » Fri Nov 15, 2019 9:02 am

yes, lavelle specified in class that the atom with the lowest ionization energy should be at the center

Megan Jung 3A
Posts: 50
Joined: Thu Jul 11, 2019 12:17 am

Re: Center of a Lewis Structure

Postby Megan Jung 3A » Fri Nov 15, 2019 9:26 am

Yes, as a general rule the element with the lowest ionization energy should be placed as the central atom when drawing Lewis structures.


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